Rear swing-truck for locomotives.



. tlanad No. 895,20. .y

. PATENTE im. 4, 190s. K. RUsHfoN. REAR. SWING TRUCK-POR LoooMoTIvEs.

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PATBNTBD AUG. 4', 1908. K. RUSHTON.

REAR .SWING TRUCK FUR LOCOMOTIV'ES.

REAR SWING-TR UCK Specification of Letters Patent.

Application filed June 1, 1906. Serial No. 319.797.

Fol-'t LocoMoTIvEs.

Patented Aug. 4, 1908.

To all whom it may concern: l

Be it known that l. Knxxrxru ltt'su'roN, a citizen of the [nited States,residing in Philadelphia, Pennsvlvania, have invented certain.Improvements in ltear Swing-' lrueks for Locomotives, of which thefollowing is a specification.

My invention relates to celtniu improvements .in locomotives of the typehaving rear 1o swing trucks.

The object of'my invention is *o so desig i the truck that the mechanismwiil be outside ol" the. wheels, leaving the. central portion of.

thc truck clear for the ash pit of the locomof. tive. This object lattain inl the following manner, reference beinv had to the.accompanying drn..'i'nqs, in w iiehz- Figure l, is n side view ofsu'ticient of the trame of a locomotive to illustrate my improved swingtruck; Fig. 2, is a plan view with the equalizing springs removed; Fig.3, is a sectional view on the line 3-3, 1; Fig. 4, isa detachedperspective view o f the pivoted bar; Fig. 5, is .t view showing theouter frame ot the truck acting as a support for the overhanging firebox; and Fie'. 6, is a sectional View on the line 6-G. Fig. 5.

A is the main frame of the locomotive, the

rear portion of this immo extends under the 3o overhanging tire box Cand consists of two side members a, a and a cross member o and an endmember a.2 on which is the foot plate and the coupling.

B is the swing frame pivoted at b to the cross member a of the maintranne, the truck having transverse members b. b', end members b2, b,and a V-shaped bar extending from the pivot b to each -side of one ofthetransverse membeis b', so that the truck 40 swings on the pivot b asittakes the curves.

D is the axle having flangedwheels rl, d and each end of this axleismounted in aixed box d', Fig. 3, in the end frame. b?.

A', A are side frames projecting from the main frame A and each frameconsists of ybrackets a3, a? and a crossplate a* arranged on edge. lThiscross late a may be clear of the overhang'mg tire ox of the boiler C, ormay actas a support forit, as shown in Fig. 5. The tire box having e.bearing c resting on the extended portion of the. frame A in thisinstance.l

Mount-ed on the end frame L of the truckB above the box d is n bnr E,Fig. 4, having an opening for a uivot pin e which projects from hubwhich enters n recess in the top of the frame bfso as to relieve the pine. On each end of the pivoted bnr E is u trunnion e', these trunnionsare connected by links E', E' 60 to trunniousf. fon a voke F whichextends'- over the end frame lf. This yoke is U- shaped in crosssection. having two deep side tlanges forming a pocket for theelliptical spring G, \\'l"ch is seated as shown in big. 1. 65 In orderto kee each yoke F in line with its side. frame A', i secure brackets h,.71. to the.. side trame, these brackets have fingers h' which projectalongside of the inner frange of the voke F leaving a narrow channelbetween ,it and the. frame for the flange to work m. The brackets alsohave. holes hl for the pasofthe rods g. g which are coupled to thespring G, the rod g in thel present instance is secured .to the rearbracket h but may be coupled to a cross bar -i forming a continuationf-the equalizing gear, the bar bearing ugainsttheimain fname A as shownin Fig. 6. By this construction the brackets h are relieved from allstrain, the brackets acting S0 simply as guides. 'that portion of theequalk izing gear at. the rear truck is mounted outside of th'e maintrame.

The rod g' is connected to a cross bar y. Levers G pivoted at gl tobrackets g* on the `frame A have arms which rest upon the cross bur, theother arms are connected with the equolizing gear of the main frame ofthe engine. This eqtmliziug gear may be moditied without departing frommy invention. J0

The truck B is free to swingl yon its pivot b when the locomotive isrounding a curve, the links E' allowing e. certain lateral movement tothe truck independent of the yokes F and Ithe pivoted bats F, willaccommodate theinselves to the position of the truck, thus avoiding allunnecessary strains.

B v the above construction it/will be seen that all the mechanism isoutside of the main frame and in fact is outside of the wheels, so 10|that increased space is secured'for the as h pit which has been cnipedon this type of ocomotive, and without interfering with the swinging ofthe truck.

I Claiinr 1. The combination in a locomotive ofa frame, a swinging truckpivoted thereto, an axle, wheels therefor, bearings for the axle mountedon the truc-5. outside ofthe wheels, yokes, links connecting the 'okesto the 110 truck, and springs carried by t ie yokes, said the frame b2,ig, 3. The bor nas a central links, spr'rgs and foires being all outsideof thewheels so as to leave cleat the center port f/resrswing truckApivoted to the main ramx R of the truck and the main frame. g boxes onthe truck, en axle mounted in the 2. The combination of a main rnnie, eboxes, n bar pivoted to erich side of the truck swing truck pivotcdthereto, bers pivoted to i above the box, n. yoke above each box, linksthe truck, yokcs, and links connect-ing the connecting the b21-rs to theyokes brackets on 30 yoke-s to the pivoted bfirs.- the side freinehaving fingers for'retiiining The combination of the main frame of i1the yokes in position, a spring mounted on locomotive, side friiniessecured thereto, a each yoke, and rods connected to the spring swingtruck `iivotecl to the main frame, bois und passing through holes in thebrackets. 10 Eivoted to tllie truck, yokes held in position 6 `f-f'liecombination of the main fra-ine ofg 3 5 y the side frzinies, linksconnecting the lociiotive, a rear swing truck pivoted thereyokes to thepivotcd bars, sind eqimlizing to, side frames 'secured to the main framegi means moiinterl on the yokes. nbove the truck, each side frameconsistin 4. The combinationy of the main frame of n of two breicketsund a cross plate, 'okes hel 15 locomotive, side frames secured thereto,a in position on the outside of the cross plates, 40

rear swing truck pivoted to the niiiin frame, and links connecting theyokes `-with the- .i j A boxes on the truck, un axle mounted in thetruck.

oxes, a bei' pivotedto erich side of the truck In testimony whereof, Ihave Vsigned my above the box, a yoko'above cach box, links name to thisspecification, in tho presence of 20 connecting the. bers to the yokes,brackets on two subscribing witnesses.

theside freine having fingers for retaining T f TO the )folies inposition, and eqnaiizing means KFNAEHI RUSH N restino on the yokes. .iWitnesses: 4 5. 'he combination of the inem freine of a i C. LINSLEY, 125 locomotive, side froiiies secured thereto, a: E. J. ABBO'I'I. l f

